curl -X POST https://api.box.com/2.0/collaboration_whitelist_entries \
     -H 'Authorization: Bearer <ACCESS_TOKEN>'
     -H 'Content-Type: application/json" '
     -d '{
       "domain": "example.com",
       "direction": "inboud"
     }'

BoxCollaborationWhitelistEntry entry = await client.CollaborationWhitelistManager.AddCollaborationWhitelistEntryAsync(
    "example.com",
    "both"
);

BoxCollaborationWhitelist.create(api, "test.com", BoxCollaborationWhitelist.WhitelistDirection.BOTH);

from boxsdk.object.collaboration_whitelist import WhitelistDirection
domain = 'example.com'
whitelist_entry = client.collaboration_whitelist().add_domain(domain, direction=WhitelistDirection.INBOUND)

client.collaborationWhitelist.addDomain('test.com', client.collaborationWhitelist.directions.INBOUND, callback);